a term used in greeting between one minority to another
greeting used by a black or spanish person from a ghetto back ground
a greeting used from a minority to greet a friend some of the friends can be white if there from a ghetto background and note to white people dont say it back unless ur from a black or spanish decent

(black kid) what up nigga.(spanish kid) whats good nigga.
(black kid) what up nigga.(white boy) whats up man.

A derogatory word used by black people to retain (and exploit) their ancestors past as slaves. Many blacks claim it's a term of endearment (akin to brother, homie, etc), but in no way can it be as its root meaning is ignorance. It's another double standard of racism in our current time.

White guy "what up nigga"
Black guy "nigga?"
White guy "you know what I mean bro"
Black guy "you mean I'm a nigger"
White guy "Nah man, it ain't like that"
Black guy punches the white guy.
Black guy gets arrested for assault and released without charges because the white guy is accused of using racial slurs (that the Black guy uses everyday in his vocabulary with his "brothers" that he has no idea if he's actually related to).